div#gridClamp{width:980px;margin:0 auto}div#gridMain{background-color:#bdbdbd;position:relative;width:980px;float:left}div#gridFrame{float:left}div#gridSpanningHeader{margin:0;width:640px;float:left}div#gridColumnContainer{width:640px;float:left;margin:10px}div#gridMainSidebar{float:left;clear:left;width:160px;margin:0}div#gridMainColumn{float:left;width:480px;margin:0}div#gridAdSidebar{width:310px;margin:10px 10px 10px 0;float:left}